shape size 𝒂:𝒃 𝒂 𝟐 : 𝒃 𝟐

___ : ___ 9 6 ___ : ___ 9 6 ___ : ___ 92 62 = ___ : ___ 81 36 ___ = ___ 81 60 81x = 2160 36 x 81 81 x = 26.67 in2

___ : ___ 12 18 ___ : ___ 9 6 ___ : ___ 12 18 ___ : ___ 9 6 122 182 = ___ : ___ 144 324 ___ : ___ 92 62 = ___ : ___ 81 36 144 ___ = ___ x 324x = 12960 ___ = ___ 81 60 324 90 81x = 2160 324 324 36 x 81 81 x = 40 cm2 x = 26.67 in2

A = 50 cm2 A = 98 cm2 ___ : ___ 50 98 𝟓𝟎 𝟗𝟖 _____ : _____ Scale factor of areas: ___ : ___ 50 98 𝒂 𝟐 : 𝒃 𝟐 Scale factor of perimeters: 𝟓𝟎 𝟗𝟖 _____ : _____ 𝒂:𝒃

x2.5 A = 50 cm2 13 A = 98 cm2 x 2.52 x2.5 Scale factor of areas: ___ : ___ 50 98 𝒂 𝟐 : 𝒃 𝟐 Scale factor of perimeters: 𝟓𝟎 𝟗𝟖 _____ : _____ 13 x 2.5 x 2.5 = 81.25 bushels 𝒂:𝒃

x2.5 A = 50 cm2 A = 98 cm2 13 13 13 6.5 Scale factor of areas: ___ : ___ 50 98 x2.5 13 13 6.5 𝒂 𝟐 : 𝒃 𝟐 Scale factor of perimeters: 6.5 6.5 𝟓𝟎 𝟗𝟖 3.25 _____ : _____ = ____ bushels 81.25 𝒂:𝒃

A = 135 ft2 A = 1875 ft2 ____ : ____ 1875 135 𝟏𝟖𝟕𝟓 𝟏𝟑𝟓 _____ : _____ Scale factor of areas: ____ : ____ 1875 135 𝒂 𝟐 : 𝒃 𝟐 Scale factor of perimeters: 𝟏𝟖𝟕𝟓 𝟏𝟑𝟓 _____ : _____ 𝒂:𝒃

____ = ____ 32 2.50 A = 135 ft2 52 x A = 1875 ft2 ____ = ____ 9 2.50 25 x Scale factor of areas: ____ : ____ 1875 135 𝒂 𝟐 : 𝒃 𝟐 9x = 62.50 Scale factor of perimeters: 9 9 𝟏𝟖𝟕𝟓 𝟏𝟑𝟓 _____ : _____ x = $ 69.44 𝒂:𝒃